Use the following options to alter agent-related settings.
| Configuration option=Default value | Description |
| agent_down_time=5 | (IntOpt) Seconds to regard the agent is down. |
| external_pids=$state_path/external/pids | (StrOpt) Location to store child pid files |
| interface_driver=None | (StrOpt) The driver used to manage the virtual interface. |
| report_interval=4 | (FloatOpt) Seconds between nodes reporting state to server |
| use_namespaces=True | (BoolOpt) Allow overlapping IP. |
